In an update this morning, Snapguide has rolled out a feature that it's able to claim as a world's first: direct sharing from its iOS app to the Pinterest app. The user picks a guide, pushes two buttons, and Snapguide preps the content for pinning and pushes it right into Pinterest.

Here's a quick demo of how it works:

Once the user opens the latest version of Snapguide, the app automatically detects if the user is also running the latest build of Pinterest. If so, it'll automatically add the Pinterest button to the "Share this guide on…" screen. Click that button, and Snapguide packages up the content appropriately and sends it over to the Pinterest app. Once the user has pinned it (or canceled the pin), the app will automatically send the user back to Snapguide.

So, why does this matter? Because it's almost certainly a sign of things to come. While this functionality seems to be limited to Snapguide for now -- I hear that the guys at Snapguide worked pretty closely with the folks at Pinterest on this -- it's almost certain that Pinterest is looking into how to open this up (or something similar) to just about any mobile app. With Pinterest blowing up the way it is, we can be damn sure that everyone will jump on that opportunity.